Cleaning-powder.



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To all whom it may concern silicate of magnesium, commonly Be it knownthat I, CHARLES H. SOHLA- BACH, a citizen of the United States, residingat Canton, in the county of Stark and State of Ohio, have inventedcertain new and useful Improvements in Cleaning-Powders, of which thefollowing is a specification.

The invention relates to powders for cleaning and like purposes composedof or containing sodium bisulfate or other deliquescent or partlydeliquescent materials; and the object of the invention is to pre-.serve such a powder in a free and dry granular condition, and to preventa caking 'or conglomeration of the same in cartons or other packagespending its use.

For use in a cleanin powder, sodium bisulfate is finel pow ered orgranulated and may be com ined with a certain portion of kiln driedsodium chlorid, likewise powdered or granulated, thus forming acomposition which can be readily and conveniently handled in a powderedform for cleaning purposes.

Sodium bisulfate, however, is of such a deli uescent character, thatalthough it may not time of the atmosphere, it absorbs so much moisturefrom the atmosphere as to cause it to harden and cake; and sodiumchlorid unless chemically pure, is also slightly deliquescent; so thatwhen a preparation is composed of sodium bisulfate or of sodiumbisulfate combined with sodium chlorid, it has been found practicallyimpossible to preserve it in a granular freeflowing condition for anylength of time, in any form of carton or package suitable for economicalcommercia r uirements.

This culty is avoided, and the object" of the invention is attained,-bymixing a relatively small portionpf, finely wdered own as talc orsteatite, with the bisulfate or with the sodium bisulfate and sodium'chlorid composing-the cleamn wder; thus forming a composition wh cremains dry under ordinary atmospheric conditions and is not injuriouslyafigcted by contact with the ordinary moisture of the Specification 01Letters Patent. Application filed Apr1128, 1913. Serial No. 764,058.

y liquefy when/exposed tothe mois- Patented Jan. 12, 1915.

" atmosphere, it being understood that the presence of the powdered talcor steatite does not afiect the proper action of the other ingredient oringredients as a cleaning powder in the presence of water. v

A preferred, and eflicient application of the invention is to make thecleaning powder of about seventy-five per cent. (7 5%) of finelypowdered or granulated sodium bisulfate combined with some nineteen percent. (19%) of likewise powdered or granulated kiln dried sodiumchlorid, and then mixing therewith about six per cent. (6%) of finelypowdered silicate of magnesium. In the composition thus formed, thefinely powdered silicate of magnesium coats the granules "of the othermaterials and also substantially fills the interstices between the same.

As the silicate of magnesium does not absorb moisture from theatmosphere and being inorganic is not decomposed by the acids of theother ingredients, and furthermore, as its presence does not afl'ect theproper action of the'other ingredients as a cleaning powder in thepresence of water, it may properly be referred to as an inert powder orelement in the composition as a whole. At any event, its presence servesto preserve the composition to such an extent that when contained in asuitable package,

as for instance in awooden carton or a metal can havm .seamed oints, thecleaningv powder can e carried in stock on the shelves of a wholesale orretail merchant for many months without losing its original dry powderedor granular form, so that it can be poured as such fromthe'package foruse in clea Cit is not the invention to the particular proportions ofthe in edients set forth herein, nor to the use o the sodium chlorid incombination with the other elements; for it will be understood thatthe'exact-aifirroportions of the the invention.

intended a; limit the scope oi I u v i m" of sodium bisulfate and aninerganic 1. A cleaningriabwder or the 1ike,'inc1udvi flnertiowder eufif l mixture 0 sodium bisulfate, sodium. 4. c1 powderincluding a. cori and an inorganic inert owder. ture of-sodium isulfate and wderedtalc 2. A cleaning owder or the e, includ- CHARLES H. SC ABACH. I15 Imixture 0 sodium bisulfate, Witnesses: c arid and owdered talc". Eu'nmnnScam,

der including a. mix- Fmm J. Zmwn.

8." A cleaning pow

